<template>
  <div>
    <!-- 面包屑导航区 -->
<el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
</el-breadcrumb>
<!-- 卡片视图 -->
<el-card >
<!-- 搜索与添加区域 -->
  <el-row :gutter="20">
    <el-col :span="8">
    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList" >
    <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
    </el-input>
    </el-col>
    <el-col :span="4">
        <el-button type="primary" @click="addDialogVisible=true">
            添加用户
        </el-button>
    </el-col>
</el-row>
<!-- 用户列表 -->
<el-table :data="userlist" border stripe>
    <el-table-column label="序号" type="index" align="center" width="80px"></el-table-column>
    <el-table-column label="姓名" prop="username" align="center"></el-table-column>
    <el-table-column label="邮箱" prop="email" align="center"></el-table-column>
    <el-table-column label="电话" prop="mobile" align="center"></el-table-column>
    <el-table-column label="角色" prop="role_name" align="center"></el-table-column>
    <el-table-column label="状态" >
        <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
        </template>
    </el-table-column>
    <el-table-column label="操作" width="180px" align="center">
        <template slot-scope="scope">
            <!--  -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.id)"></el-button>
            <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable="false">
                <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
        </template>
    </el-table-column>
</el-table>
<!-- 分页区域 -->
<el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1,2,5,10,20]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>
<!-- 添加用户对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="30%"
  @close="addDialogClosed"
  >
  <!-- 内容主体区 -->
  <span>
    <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
    <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  </span>
  <span slot="footer" class="dialog-footer">
    <!-- 底部区 -->
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="30%"
  @close="editDialogClosed"
  >
  <!-- 内容主体区 -->
  <span>
    <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
    <el-form-item label="用户名" >
    <el-input v-model="editForm.username" disabled></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="editForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="editForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  </span>
  <span slot="footer" class="dialog-footer">
    <!-- 底部区 -->
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUser(editForm.id)">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="30%"
 @close="setRoleDialogClosed"
  >
  <div>
    <p>当前用户：{{userInfo.username}}</p>
    <p>当前角色：{{userInfo.role_name}}</p>
    <p>分配新角色：
    <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in rolesList"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>
  </div>
</template>

<script>
export default {
    data(){
        //验证邮箱的规则
        var checkEmail=(rule,value,cb)=>{
            //验证邮箱的正则表达式
          const  regEmail = /^\w+((-\w+)|(\.\w+))*@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/; 
          if(regEmail.test(value)){
            return cb()
          }
          cb(new Error("请输入合法的邮箱"))
        }
        //验证手机号的规则
        var checkMobile=(rule,value,cb)=>{
            //验证手机号的正则表达式
          const regMobile= /^0{0,1}(13[4-9]|15[7-9]|15[0-2]|18[7-8])[0-9]{8}$/;
          if(regMobile.test(value)){
            return cb()
          } 
          cb(new Error('请输入合法的手机号'))
        }
        return {
            //获取用户列表的对象
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:2
            },
            userlist:[],
            total:0,
            // 控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            //控制用户修改对话框
            editDialogVisible:false,
            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            // 添加表单验证规则对象
            addFormRules:{
                username:[
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 10, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email:[
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    {validator:checkEmail,trigger: 'blur'}
                ],
                mobile:[
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    {validator:checkMobile,trigger: 'blur'}
                ]
            },
            // 查询到的用户信息对象
            editForm:{},
            editFormRules:{
                email:[
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    {validator:checkEmail,trigger: 'blur'}
                ],
                mobile:[
                    { required: true, message: '请输入手机号', trigger: 'blur' },
                    {validator:checkMobile,trigger: 'blur'}
                ]
            },
            // 控制角色对话框
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            userList:[],
            // 已选中的角色id值
            selectedRoleId:'',
            rolesList:[]

        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
        const {data:res} =await this.$http.get('users',{params:this.queryInfo})
        if(res.meta.status!==200) return this.$message.error('获取用户列表失败')
        this.userlist=res.data.users
        this.total=res.data.total
        console.log('res',res);
        },
        //监听pageSize改变时间
        handleSizeChange(val) {
        console.log(`每页 ${val} 条`);
        this.queryInfo.pagesize=val
        this.getUserList()
      },
      //监听页码值改变的事件
      handleCurrentChange(val) {
        console.log(`当前页: ${val}`);
        this.queryInfo.pagenum=val
        this.getUserList()
      },
    //  监听switch开关状态改变
     async userStateChanged(userInfo){
        console.log('userInfo',userInfo);
      const {data:res}= await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if(res.meta.status!==200) {
        userInfo.mg_state=!userInfo.mg_state
        return this.$message.error('更新用户状态失败')
    }
    this.$message.success('更新用户状态成功')
      },
      //监听用户对话框的关闭事件
      addDialogClosed(){
        this.$refs.addFormRef.resetFields()
      },
      //点击按钮，添加新用户
      addUser(){
        this.$refs.addFormRef.validate(async valid=>{
            console.log('valid',valid);
            if(!valid) return
            //发起添加用户请求
         const{data:res}=  await this.$http.post('users',this.addForm)
         if(res.meta.status!==201)
         return this.$message.error('添加用户失败')
         this.$message.success('添加用户成功')
         //隐藏添加用户的对话框
         this.addDialogVisible=false
         this.getUserList()
        })
      },
      //展示用户编辑的对话框
     async showEditDialog(id){
        const {data:res}=await this.$http.get('users/'+id)
        this.editDialogVisible=true
        if(res.meta.status!=200) return this.$message.error('查询用户信息失败')
        this.editForm=res.data
      },
      //编辑用户信息调用接口
      editUser(id){
        this.$refs.editFormRef.validate(async valid=>{
            console.log('valid',valid);
            if(!valid) return
            //发起添加用户请求
         const{data:res}=  await this.$http.put('users/'+ id,this.editForm)
         if(res.meta.status!==200)
         return this.$message.error('更新用户失败')
         this.$message.success('更新用户成功')
         //隐藏添加用户的对话框
         this.editDialogVisible=false
         this.getUserList()
        })
      },
      editDialogClosed(){
        this.$refs.addFormRef.resetFields()
      },
      // 根据id删除对应的用户信息
     async removeById(id) {
      const confirmResult= await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err);
        // 如果用户点击确定删除，则返回值为字符串，confirm
        // 如果用户取消了删除，则返回值为字符串cancel
        if(confirmResult!=='confirm')
        return this.$message.info('已经取消删除')
       const {data:res}= await this.$http.delete('users/' + id)
       if(res.meta.status!==200) return this.$message.error('删除失败')
       this.$message.success('删除用户成功')
       this.getUserList()
      },
      // 展示分配角色对话框
     async setRole(userInfo){
         this.userInfo=userInfo
        //在展示对话框前，获取所有角色列表
       const {data:res}= await this.$http.get('roles')
       if(res.meta.status!==200) return this.$message.error('获取角色列表失败')

       this.rolesList=res.data
        this.setRoleDialogVisible=true
      },
      // 点击按钮分配角色
      async saveRoleInfo(){
        if(!this.selectedRoleId) return this.$message.error('请选择要分配的角色')
        const{data:res}= await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
        if(res.meta.status!==200) return this.$message.error('更新用户角色失败')

        this.$message.success('更新角色成功')
        this.getUserList()
        this.setRoleDialogVisible=false
      },
      // 监听分配角色对话框的关闭事件
      setRoleDialogClosed(){
        this.selectedRoleId=''
        this.userInfo={}
      }
    }
}
</script>

<style lang="less" scoped>

</style>